Introduction section1: general requirements
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- APPENDIX 3
- Notes
APPENDIX 3B-TYPICAL ARRANGEMENT OF METERING CABINET ON COMPOUND WALL
Description:- Compound wall Weather proof (IP 55) metering cabinet Hinged door with provision for wire sealing & pad locking (hole size: min. 10mm dia.) Cable (Gland) box Transparent meter viewing window (min. 5mm thickness, size: 15cm x 15cm). Protection cover with hinges on top (size: 20cm x 20cm) Position of incomer breaker 15 / 10 cm PVC pipe sleeve for service cable. Conduit/s for earthing conductors (ECC) 15 / 10 cm PVC pipe sleeve for load cable Note: - CT operated metering: Provide sealable type VT fuses in sealable enclosure. - Minimum 2 mtr. clearance shall be maintained between electricity and water service cabinets / points. APPENDIX 3C-ARRANGEMENT OF METERING IN MAIN LV PANEL (Main Incomer Compartment / Section)
Note: - Meter viewing Perspex (min: 5mm thickness) with hinged type protection cover. - CT operated metering & Data concentrator: Provide sealable type VT fuse carriers in sealable enclosure. APPENDIX 3D- TYPICAL ELECTRICAL SERVICES ROOM WITH 1 NO. CUBICLE TYPE LV. SWITCHBOARD / PANEL. Description:-LV Switchboard / Panel. Capacitor Bank. Sub Main Distribution Board (Sample). KWh meters. Non-maintained, minimum 3 Hrs. rated, self contained emergency light. Light fitting. Non-combustible door. Notes:-All dimensions noted are in meters and not to scale. Minimum front clearance – 1.5 mtrs. Rear & side clearance – 0.75 mtrs. The minimum clear space shown at the sides and rear of the panel is for switchboards with rear access requirements only. Refer to section 3 of the regulation. APPENDIX 3E - TYPICAL ELECTRICAL SERVICE ROOM WITH 1 NO. MDB (MAX. 400 AMPS RATING) Description:- Main Meter. Main Distribution Board. Capacitor Bank. PVC/GS trunking. kWh meters. Exhaust fan (for non –air conditioned room) Non-maintained, minimum 3 Hrs. rated, self-contained emergency light Light Fitting Non-combustible door (Louvered type for non-air conditioned room) Notes:-All dimensions noted are in meters and not to scale Only minimum dimension permitted for electrical room is shown in the layout. Each electrical room shall be designed to accommodate the MDBs / SMDBs, kWh meters, etc. Prior approval shall be obtained for construction Refer to section 3 of the regulation. APPENDIX 3D- TWO LV PANELS ARRANGEMENT IN LV SWITCH ROOM Description:-LV Switchboard / Panel. Capacitor Bank. Sub Main Distribution Board (Sample). KWh meters. Non-maintained, minimum 3 Hrs. rated, self contained emergency light. Light fitting. Non-combustible door. Notes:-All dimensions noted are in meters and not to scale. Minimum front clearance – 1.5 mtrs. Rear & side clearance – 0.75 mtrs. The minimum clear space shown at the sides and rear of the panel is for switchboards with rear access requirements only. Refer to section 3 for the regulation. Download 2.29 Mb. Share with your friends:
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